package com.killLog.controller.admin;

import com.killLog.dto.DishDTO;
import com.killLog.dto.DishPageQueryDTO;
import com.killLog.entity.Dish;
import com.killLog.result.PageResult;
import com.killLog.result.Result;
import com.killLog.service.DishService;
import com.killLog.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.Set;

/**
 * 菜品管理
 */
@RestController
@RequestMapping("/admin/dish")
@Api(tags = "菜品相关接口")
@Slf4j
public class DishController {
    @Autowired
    private DishService dishService;
    @Autowired
    private RedisTemplate redisTemplate;


    /**
     * 新增菜品
     * @param dishDTO
     * @return
     */
    @PostMapping
    @ApiOperation("新增菜品")
    public Result save(@RequestBody DishDTO dishDTO){
        log.info("新增菜品：{}",dishDTO);
        dishService.saveWithFlavor(dishDTO);

        //新增菜品完之后，清理redis缓存数据（精确清理，哪里变了才清理哪里）
        String key = "dish_" + dishDTO.getCategoryId();//dish_分类id
        cleanCatch(key);

        return Result.success();
    }

    /**
     * 菜品分页查询
     * @param dishPageQueryDTO
     * @return
     */
    @GetMapping("/page")
    @ApiOperation("菜品分页查询")
    public Result<PageResult> page(DishPageQueryDTO dishPageQueryDTO){
        log.info("菜品分页查询：{}",dishPageQueryDTO);
        PageResult pageResult = dishService.pageQuery(dishPageQueryDTO);
        return Result.success(pageResult);
    }

    /**
     * 菜品批量删除
     * @param ids
     * @return
     */
    @DeleteMapping
    @ApiOperation("菜品批量删除")
    public Result delete(@RequestParam List<Long> ids){
        log.info("菜品批量删除：{}",ids);
        dishService.deleteBatch(ids);

        //删除完成后，清理所有菜品的redis缓存数据，即以dish_开头的（为了方便）
        Set keys = redisTemplate.keys("dish_*");//查出所有以dish_开头的
        redisTemplate.delete(keys);

        return Result.success();
    }

    /**
     * 根据id查询菜品
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    @ApiOperation("根据id查询菜品")
    public Result<DishVO> getById(@PathVariable Long id){
        log.info("根据id查询菜品：{}",id);
        DishVO dishVO = dishService.getByIdwithFlavor(id);
        return Result.success(dishVO);
    }

    /**
     * 修改菜品
     * @param dishDTO
     * @return
     */
    @PutMapping
    @ApiOperation("修改菜品")
    public Result update(@RequestBody DishDTO dishDTO){
        log.info("修改菜品：{}",dishDTO);
        dishService.updatewithFlavor(dishDTO);

        //修改完之后清理redis的所有的缓存数据（因为此操作肯定不频繁，所以这样做方便）
        cleanCatch("dish_*");

        return Result.success();
    }

    /**
     * 菜品的停售起售功能
     * @param status
     * @param id
     * @return
     */
    @PostMapping("/status/{status}")
    @ApiOperation("启用禁用菜品")
    public Result startOrStop(@PathVariable Integer status,Long id){
        log.info("启用禁用菜品：{},{}",status,id);
        dishService.startOrStop(status,id);

        //同理，清除所有缓存
        cleanCatch("dish_*");

        return Result.success();
    }

    /**
     * 根据分类id查询菜品
     * @param categoryId
     * @return
     */
    @GetMapping("/list")
    @ApiOperation("根据分类id查询菜品")
    public Result<List<Dish>> list(Long categoryId){
        List<Dish> list = dishService.list(categoryId);
        return Result.success(list);
    }


    /**
     * 抽取出来的统一清理所有以指定模式开头的redis缓存数据
     * @param pattern
     */
    private void cleanCatch(String pattern){
        Set keys = redisTemplate.keys(pattern);
        redisTemplate.delete(keys);
    }

}
